hiccup vs rales

hiccup

noun
  • A spasm of the diaphragm, or the resulting sound. 

  • Any spasm or sudden change. 

  • A minor setback. 

verb
  • To produce an abortive sound like a hiccup. 

  • To produce a hiccup; have the hiccups. 

  • To say with a hiccup. 

rales

noun
  • Abnormal clicking, rattling or crackling sound heard from the lungs, often audible only with a stethoscope. 

How often have the words hiccup and rales occurred in a corpus of books? (source: Google Ngram Viewer )